std_valarray.h   [plain text]

// The template and inlines for the -*- C++ -*- valarray class.

// Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002
// Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library.  This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 2, or (at your option)
// any later version.

// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.

// You should have received a copy of the GNU General Public License along
// with this library; see the file COPYING.  If not, write to the Free
// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
// USA.

// As a special exception, you may use this file as part of a free software
// library without restriction.  Specifically, if other files instantiate
// templates or use macros or inline functions from this file, or you compile
// this file and link it with other files to produce an executable, this
// file does not by itself cause the resulting executable to be covered by
// the GNU General Public License.  This exception does not however
// invalidate any other reasons why the executable file might be covered by
// the GNU General Public License.

// Written by Gabriel Dos Reis <Gabriel.Dos-Reis@DPTMaths.ENS-Cachan.Fr>

/** @file valarray
 *  This is a Standard C++ Library header.  You should @c #include this header
 *  in your programs, rather than any of the "st[dl]_*.h" implementation files.
 */

#ifndef _CPP_VALARRAY
#define _CPP_VALARRAY 1

#pragma GCC system_header

#include <bits/c++config.h>
#include <cstddef>
#include <cmath>
#include <cstdlib>
#include <numeric>
#include <functional>
#include <algorithm>

namespace std
{
    template<class _Clos, typename _Tp> class _Expr;

    template<typename _Tp1, typename _Tp2> class _ValArray;    

    template<template<class> class _Oper,
        template<class, class> class _Meta, class _Dom> struct _UnClos;

    template<template<class> class _Oper,
        template<class, class> class _Meta1,
        template<class, class> class _Meta2,
        class _Dom1, class _Dom2> class _BinClos;

    template<template<class, class> class _Meta, class _Dom> class _SClos;

    template<template<class, class> class _Meta, class _Dom> class _GClos;
    
    template<template<class, class> class _Meta, class _Dom> class _IClos;
    
    template<template<class, class> class _Meta, class _Dom> class _ValFunClos;

    template<template<class, class> class _Meta, class _Dom> class _RefFunClos;

    template<class _Tp> struct _Unary_plus;
    template<class _Tp> struct _Bitwise_and;
    template<class _Tp> struct _Bitwise_or;
    template<class _Tp> struct _Bitwise_xor;  
    template<class _Tp> struct _Bitwise_not;
    template<class _Tp> struct _Shift_left;
    template<class _Tp> struct _Shift_right;
  
    template<class _Tp> class valarray;   // An array of type _Tp
    class slice;                          // BLAS-like slice out of an array
    template<class _Tp> class slice_array;
    class gslice;                         // generalized slice out of an array
    template<class _Tp> class gslice_array;
    template<class _Tp> class mask_array;     // masked array
    template<class _Tp> class indirect_array; // indirected array

} // namespace std

#include <bits/valarray_array.h>
#include <bits/valarray_meta.h>
  
namespace std
{
  template<class _Tp> class valarray
  {
  public:
      typedef _Tp value_type;

      // _lib.valarray.cons_ construct/destroy:
      valarray();
      explicit valarray(size_t);
      valarray(const _Tp&, size_t);
      valarray(const _Tp* __restrict__, size_t);
      valarray(const valarray&);
      valarray(const slice_array<_Tp>&);
      valarray(const gslice_array<_Tp>&);
      valarray(const mask_array<_Tp>&);
      valarray(const indirect_array<_Tp>&);
      template<class _Dom>
      valarray(const _Expr<_Dom,_Tp>& __e);
     ~valarray();

      // _lib.valarray.assign_ assignment:
      valarray<_Tp>& operator=(const valarray<_Tp>&);
      valarray<_Tp>& operator=(const _Tp&);
      valarray<_Tp>& operator=(const slice_array<_Tp>&);
      valarray<_Tp>& operator=(const gslice_array<_Tp>&);
      valarray<_Tp>& operator=(const mask_array<_Tp>&);
      valarray<_Tp>& operator=(const indirect_array<_Tp>&);

      template<class _Dom> valarray<_Tp>&
      	operator= (const _Expr<_Dom,_Tp>&);

      // _lib.valarray.access_ element access:
      // XXX: LWG to be resolved.
      const _Tp&                 operator[](size_t) const;
      _Tp&                operator[](size_t);		
      // _lib.valarray.sub_ subset operations:
      _Expr<_SClos<_ValArray,_Tp>, _Tp> operator[](slice) const;
      slice_array<_Tp>    operator[](slice);
      _Expr<_GClos<_ValArray,_Tp>, _Tp> operator[](const gslice&) const;
      gslice_array<_Tp>   operator[](const gslice&);
      valarray<_Tp>     	 operator[](const valarray<bool>&) const;
      mask_array<_Tp>     operator[](const valarray<bool>&);
      _Expr<_IClos<_ValArray, _Tp>, _Tp>
      	operator[](const valarray<size_t>&) const;
      indirect_array<_Tp> operator[](const valarray<size_t>&);

      // _lib.valarray.unary_ unary operators:
      _Expr<_UnClos<_Unary_plus,_ValArray,_Tp>,_Tp>  operator+ () const;
      _Expr<_UnClos<negate,_ValArray,_Tp>,_Tp> operator- () const;
      _Expr<_UnClos<_Bitwise_not,_ValArray,_Tp>,_Tp> operator~ () const;
      _Expr<_UnClos<logical_not,_ValArray,_Tp>,bool> operator! () const;
      
      // _lib.valarray.cassign_ computed assignment:
      valarray<_Tp>& operator*= (const _Tp&);
      valarray<_Tp>& operator/= (const _Tp&);
      valarray<_Tp>& operator%= (const _Tp&);
      valarray<_Tp>& operator+= (const _Tp&);
      valarray<_Tp>& operator-= (const _Tp&);
      valarray<_Tp>& operator^= (const _Tp&);
      valarray<_Tp>& operator&= (const _Tp&);
      valarray<_Tp>& operator|= (const _Tp&);
      valarray<_Tp>& operator<<=(const _Tp&);
      valarray<_Tp>& operator>>=(const _Tp&);
      valarray<_Tp>& operator*= (const valarray<_Tp>&);
      valarray<_Tp>& operator/= (const valarray<_Tp>&);
      valarray<_Tp>& operator%= (const valarray<_Tp>&);
      valarray<_Tp>& operator+= (const valarray<_Tp>&);
      valarray<_Tp>& operator-= (const valarray<_Tp>&);
      valarray<_Tp>& operator^= (const valarray<_Tp>&);
      valarray<_Tp>& operator|= (const valarray<_Tp>&);
      valarray<_Tp>& operator&= (const valarray<_Tp>&);
      valarray<_Tp>& operator<<=(const valarray<_Tp>&);
      valarray<_Tp>& operator>>=(const valarray<_Tp>&);

      template<class _Dom>
        valarray<_Tp>& operator*= (const _Expr<_Dom,_Tp>&);
      template<class _Dom>
        valarray<_Tp>& operator/= (const _Expr<_Dom,_Tp>&);
      template<class _Dom>
        valarray<_Tp>& operator%= (const _Expr<_Dom,_Tp>&);
      template<class _Dom>
        valarray<_Tp>& operator+= (const _Expr<_Dom,_Tp>&);
      template<class _Dom>
        valarray<_Tp>& operator-= (const _Expr<_Dom,_Tp>&);
      template<class _Dom>
        valarray<_Tp>& operator^= (const _Expr<_Dom,_Tp>&);
      template<class _Dom>
        valarray<_Tp>& operator|= (const _Expr<_Dom,_Tp>&);
      template<class _Dom>
        valarray<_Tp>& operator&= (const _Expr<_Dom,_Tp>&);
      template<class _Dom>
        valarray<_Tp>& operator<<=(const _Expr<_Dom,_Tp>&);
      template<class _Dom>
        valarray<_Tp>& operator>>=(const _Expr<_Dom,_Tp>&);

      
      // _lib.valarray.members_ member functions:
      size_t size() const;
      _Tp    sum() const;	
      _Tp    min() const;	
      _Tp    max() const;	

//           // FIXME: Extension
//       _Tp    product () const;

      valarray<_Tp> shift (int) const;
      valarray<_Tp> cshift(int) const;
      _Expr<_ValFunClos<_ValArray,_Tp>,_Tp> apply(_Tp func(_Tp)) const;
      _Expr<_RefFunClos<_ValArray,_Tp>,_Tp> apply(_Tp func(const _Tp&)) const;
      void resize(size_t __size, _Tp __c = _Tp());

  private:
      size_t _M_size;
      _Tp* __restrict__ _M_data;

      friend class _Array<_Tp>;
  };


  template<typename _Tp> struct _Unary_plus : unary_function<_Tp,_Tp> {
      _Tp operator() (const _Tp& __t) const { return __t; }
  };

  template<typename _Tp> struct _Bitwise_and : binary_function<_Tp,_Tp,_Tp> {
      _Tp operator() (_Tp __x, _Tp __y) const { return __x & __y; }
  };

  template<typename _Tp> struct _Bitwise_or : binary_function<_Tp,_Tp,_Tp> {
      _Tp operator() (_Tp __x, _Tp __y) const { return __x | __y; }
  };

  template<typename _Tp> struct _Bitwise_xor : binary_function<_Tp,_Tp,_Tp> {
      _Tp operator() (_Tp __x, _Tp __y) const { return __x ^ __y; }
  };
  
  template<typename _Tp> struct _Bitwise_not : unary_function<_Tp,_Tp> {
      _Tp operator() (_Tp __t) const { return ~__t; }
  };

  template<typename _Tp> struct _Shift_left : unary_function<_Tp,_Tp> {
      _Tp operator() (_Tp __x, _Tp __y) const { return __x << __y; }
  };

  template<typename _Tp> struct _Shift_right : unary_function<_Tp,_Tp> {
      _Tp operator() (_Tp __x, _Tp __y) const { return __x >> __y; }
  };

  
  template<typename _Tp>
  inline const _Tp&
  valarray<_Tp>::operator[] (size_t __i) const
  { return _M_data[__i]; }

  template<typename _Tp>
  inline _Tp&
  valarray<_Tp>::operator[] (size_t __i)
  { return _M_data[__i]; }

} // std::
      
#include <bits/slice.h>
#include <bits/slice_array.h>
#include <bits/gslice.h>
#include <bits/gslice_array.h>
#include <bits/mask_array.h>
#include <bits/indirect_array.h>

namespace std
{
  template<typename _Tp>
  inline valarray<_Tp>::valarray () : _M_size (0), _M_data (0) {}

  template<typename _Tp>
  inline valarray<_Tp>::valarray (size_t __n) 
      : _M_size(__n), _M_data(__valarray_get_storage<_Tp>(__n))
  { __valarray_default_construct(_M_data, _M_data + __n); }

  template<typename _Tp>
  inline valarray<_Tp>::valarray (const _Tp& __t, size_t __n)
    : _M_size(__n), _M_data(__valarray_get_storage<_Tp>(__n))
  { __valarray_fill_construct (_M_data, _M_data + __n, __t); }

  template<typename _Tp>
  inline valarray<_Tp>::valarray (const _Tp* __restrict__ __p, size_t __n)
    : _M_size(__n), _M_data(__valarray_get_storage<_Tp>(__n))
  { __valarray_copy_construct (__p, __p + __n, _M_data); }

  template<typename _Tp>
  inline valarray<_Tp>::valarray (const valarray<_Tp>& __v)
    : _M_size(__v._M_size), _M_data(__valarray_get_storage<_Tp>(__v._M_size))
  { __valarray_copy_construct (__v._M_data, __v._M_data + _M_size, _M_data); }

  template<typename _Tp>
  inline valarray<_Tp>::valarray (const slice_array<_Tp>& __sa)
    : _M_size(__sa._M_sz), _M_data(__valarray_get_storage<_Tp>(__sa._M_sz))
  {
    __valarray_copy
      (__sa._M_array, __sa._M_sz, __sa._M_stride, _Array<_Tp>(_M_data));
  }

  template<typename _Tp>
  inline valarray<_Tp>::valarray (const gslice_array<_Tp>& __ga)
    : _M_size(__ga._M_index.size()),
      _M_data(__valarray_get_storage<_Tp>(_M_size))
  {
    __valarray_copy
      (__ga._M_array, _Array<size_t>(__ga._M_index),
       _Array<_Tp>(_M_data), _M_size);
  }

  template<typename _Tp>
  inline valarray<_Tp>::valarray (const mask_array<_Tp>& __ma)
    : _M_size(__ma._M_sz), _M_data(__valarray_get_storage<_Tp>(__ma._M_sz))
  {
    __valarray_copy
      (__ma._M_array, __ma._M_mask, _Array<_Tp>(_M_data), _M_size);
  }

  template<typename _Tp>
  inline valarray<_Tp>::valarray (const indirect_array<_Tp>& __ia)
    : _M_size(__ia._M_sz), _M_data(__valarray_get_storage<_Tp>(__ia._M_sz))
  {
    __valarray_copy
      (__ia._M_array, __ia._M_index, _Array<_Tp>(_M_data), _M_size);
  }

  template<typename _Tp> template<class _Dom>
  inline valarray<_Tp>::valarray (const _Expr<_Dom, _Tp>& __e)
    : _M_size(__e.size ()), _M_data(__valarray_get_storage<_Tp>(_M_size))
  { __valarray_copy (__e, _M_size, _Array<_Tp>(_M_data)); }

  template<typename _Tp>
  inline valarray<_Tp>::~valarray ()
  {
      __valarray_destroy_elements(_M_data, _M_data + _M_size);
      __valarray_release_memory(_M_data);
  }

  template<typename _Tp>
  inline valarray<_Tp>&
  valarray<_Tp>::operator= (const valarray<_Tp>& __v)
  {
      __valarray_copy(__v._M_data, _M_size, _M_data);
      return *this;
  }

  template<typename _Tp>
  inline valarray<_Tp>&
  valarray<_Tp>::operator= (const _Tp& __t)
  {
      __valarray_fill (_M_data, _M_size, __t);
      return *this;
  }

  template<typename _Tp>
  inline valarray<_Tp>&
  valarray<_Tp>::operator= (const slice_array<_Tp>& __sa)
  {
      __valarray_copy (__sa._M_array, __sa._M_sz,
              __sa._M_stride, _Array<_Tp>(_M_data));
      return *this;
  }

  template<typename _Tp>
  inline valarray<_Tp>&
  valarray<_Tp>::operator= (const gslice_array<_Tp>& __ga)
  {
      __valarray_copy (__ga._M_array, _Array<size_t>(__ga._M_index),
              _Array<_Tp>(_M_data), _M_size);
      return *this;
  }

  template<typename _Tp>
  inline valarray<_Tp>&
  valarray<_Tp>::operator= (const mask_array<_Tp>& __ma)
  {
      __valarray_copy (__ma._M_array, __ma._M_mask,
              _Array<_Tp>(_M_data), _M_size);
      return *this;
  }

  template<typename _Tp>
  inline valarray<_Tp>&
  valarray<_Tp>::operator= (const indirect_array<_Tp>& __ia)
  {
      __valarray_copy (__ia._M_array, __ia._M_index,
               _Array<_Tp>(_M_data), _M_size);
      return *this;
  }

  template<typename _Tp> template<class _Dom>
  inline valarray<_Tp>&
  valarray<_Tp>::operator= (const _Expr<_Dom, _Tp>& __e)
  {
      __valarray_copy (__e, _M_size, _Array<_Tp>(_M_data));
      return *this;
  }

  template<typename _Tp>
  inline _Expr<_SClos<_ValArray,_Tp>, _Tp>
  valarray<_Tp>::operator[] (slice __s) const
  {
      typedef _SClos<_ValArray,_Tp> _Closure;
      return _Expr<_Closure, _Tp> (_Closure (_Array<_Tp>(_M_data), __s));
  }

  template<typename _Tp>
  inline slice_array<_Tp>
  valarray<_Tp>::operator[] (slice __s)
  {
      return slice_array<_Tp> (_Array<_Tp>(_M_data), __s);
  }

  template<typename _Tp>
  inline _Expr<_GClos<_ValArray,_Tp>, _Tp>
  valarray<_Tp>::operator[] (const gslice& __gs) const
  {
      typedef _GClos<_ValArray,_Tp> _Closure;
      return _Expr<_Closure, _Tp>
          (_Closure (_Array<_Tp>(_M_data), __gs._M_index->_M_index));
  }

  template<typename _Tp>
  inline gslice_array<_Tp>
  valarray<_Tp>::operator[] (const gslice& __gs)
  {
      return gslice_array<_Tp>
          (_Array<_Tp>(_M_data), __gs._M_index->_M_index);
  }

  template<typename _Tp>
  inline valarray<_Tp>
  valarray<_Tp>::operator[] (const valarray<bool>& __m) const
  {
      size_t __s (0);
      size_t __e (__m.size ());
      for (size_t __i=0; __i<__e; ++__i)
          if (__m[__i]) ++__s;
      return valarray<_Tp> (mask_array<_Tp> (_Array<_Tp>(_M_data), __s,
                                         _Array<bool> (__m)));
  }

  template<typename _Tp>
  inline mask_array<_Tp>
  valarray<_Tp>::operator[] (const valarray<bool>& __m)
  {
      size_t __s (0);
      size_t __e (__m.size ());
      for (size_t __i=0; __i<__e; ++__i)
          if (__m[__i]) ++__s;
      return mask_array<_Tp> (_Array<_Tp>(_M_data), __s, _Array<bool> (__m));
  }

  template<typename _Tp>
  inline _Expr<_IClos<_ValArray,_Tp>, _Tp>
  valarray<_Tp>::operator[] (const valarray<size_t>& __i) const
  {
      typedef _IClos<_ValArray,_Tp> _Closure;
      return _Expr<_Closure, _Tp> (_Closure (*this, __i));
  }

  template<typename _Tp>
  inline indirect_array<_Tp>
  valarray<_Tp>::operator[] (const valarray<size_t>& __i)
  {
      return indirect_array<_Tp> (_Array<_Tp>(_M_data), __i.size(),
                                _Array<size_t> (__i));
  }

  template<class _Tp>
  inline size_t valarray<_Tp>::size () const { return _M_size; }

  template<class _Tp>
  inline _Tp
  valarray<_Tp>::sum () const
  {
      return __valarray_sum(_M_data, _M_data + _M_size);
  }

//   template<typename _Tp>
//   inline _Tp
//   valarray<_Tp>::product () const
//   {
//       return __valarray_product(_M_data, _M_data + _M_size);
//   }

  template <class _Tp>
     inline valarray<_Tp>
     valarray<_Tp>::shift(int __n) const
     {
       _Tp* const __a = static_cast<_Tp*>
         (__builtin_alloca(sizeof(_Tp) * _M_size));
       if (__n == 0)                          // no shift
         __valarray_copy_construct(_M_data, _M_data + _M_size, __a);
       else if (__n > 0)         // __n > 0: shift left
         {                 
           if (size_t(__n) > _M_size)
             __valarray_default_construct(__a, __a + __n);
           else
             {
               __valarray_copy_construct(_M_data+__n, _M_data + _M_size, __a);
               __valarray_default_construct(__a+_M_size-__n, __a + _M_size);
             }
         }
       else                        // __n < 0: shift right
         {                          
           __valarray_copy_construct (_M_data, _M_data+_M_size+__n, __a-__n);
           __valarray_default_construct(__a, __a - __n);
         }
       return valarray<_Tp> (__a, _M_size);
     }

  template <class _Tp>
     inline valarray<_Tp>
     valarray<_Tp>::cshift (int __n) const
     {
       _Tp* const __a = static_cast<_Tp*>
         (__builtin_alloca (sizeof(_Tp) * _M_size));
       if (__n == 0)               // no cshift
         __valarray_copy_construct(_M_data, _M_data + _M_size, __a);
       else if (__n > 0)           // cshift left
         {               
           __valarray_copy_construct(_M_data, _M_data+__n, __a+_M_size-__n);
           __valarray_copy_construct(_M_data+__n, _M_data + _M_size, __a);
         }
       else                        // cshift right
         {                       
           __valarray_copy_construct
             (_M_data + _M_size+__n, _M_data + _M_size, __a);
           __valarray_copy_construct
             (_M_data, _M_data + _M_size+__n, __a - __n);
         }
       return valarray<_Tp>(__a, _M_size);
     }

  template <class _Tp>
  inline void
  valarray<_Tp>::resize (size_t __n, _Tp __c)
  {
    // This complication is so to make valarray<valarray<T> > work
    // even though it is not required by the standard.  Nobody should
    // be saying valarray<valarray<T> > anyway.  See the specs.
    __valarray_destroy_elements(_M_data, _M_data + _M_size);
    if (_M_size != __n)
      {
        __valarray_release_memory(_M_data);
        _M_size = __n;
        _M_data = __valarray_get_storage<_Tp>(__n);
      }
    __valarray_fill_construct(_M_data, _M_data + __n, __c);
  }
    
  template<typename _Tp>
  inline _Tp
  valarray<_Tp>::min() const
  {
      return *min_element (_M_data, _M_data+_M_size);
  }

  template<typename _Tp>
  inline _Tp
  valarray<_Tp>::max() const
  {
      return *max_element (_M_data, _M_data+_M_size);
  }
  
  template<class _Tp>
  inline _Expr<_ValFunClos<_ValArray,_Tp>,_Tp>
  valarray<_Tp>::apply (_Tp func (_Tp)) const
  {
      typedef _ValFunClos<_ValArray,_Tp> _Closure;
      return _Expr<_Closure,_Tp> (_Closure (*this, func));
  }

  template<class _Tp>
  inline _Expr<_RefFunClos<_ValArray,_Tp>,_Tp>
  valarray<_Tp>::apply (_Tp func (const _Tp &)) const
  {
      typedef _RefFunClos<_ValArray,_Tp> _Closure;
      return _Expr<_Closure,_Tp> (_Closure (*this, func));
  }

#define _DEFINE_VALARRAY_UNARY_OPERATOR(_Op, _Name)                     \
  template<typename _Tp>						\
  inline _Expr<_UnClos<_Name,_ValArray,_Tp>, _Tp>               	\
  valarray<_Tp>::operator _Op() const					\
  {									\
      typedef _UnClos<_Name,_ValArray,_Tp> _Closure;	                \
      return _Expr<_Closure, _Tp> (_Closure (*this));			\
  }

    _DEFINE_VALARRAY_UNARY_OPERATOR(+, _Unary_plus)
    _DEFINE_VALARRAY_UNARY_OPERATOR(-, negate)
    _DEFINE_VALARRAY_UNARY_OPERATOR(~, _Bitwise_not)

#undef _DEFINE_VALARRAY_UNARY_OPERATOR
  
  template<typename _Tp>
  inline _Expr<_UnClos<logical_not,_ValArray,_Tp>, bool>
  valarray<_Tp>::operator!() const
  {
      typedef _UnClos<logical_not,_ValArray,_Tp> _Closure;
      return _Expr<_Closure, bool> (_Closure (*this));
  }

#define _DEFINE_VALARRAY_AUGMENTED_ASSIGNMENT(_Op, _Name)               \
  template<class _Tp>							\
  inline valarray<_Tp> &						\
  valarray<_Tp>::operator _Op##= (const _Tp &__t)			\
  {									\
      _Array_augmented_##_Name (_Array<_Tp>(_M_data), _M_size, __t);	\
      return *this;							\
  }									\
									\
  template<class _Tp>							\
  inline valarray<_Tp> &						\
  valarray<_Tp>::operator _Op##= (const valarray<_Tp> &__v)		\
  {									\
      _Array_augmented_##_Name (_Array<_Tp>(_M_data), _M_size, 		\
                               _Array<_Tp>(__v._M_data));		\
      return *this;							\
  }

_DEFINE_VALARRAY_AUGMENTED_ASSIGNMENT(+, plus)
_DEFINE_VALARRAY_AUGMENTED_ASSIGNMENT(-, minus)
_DEFINE_VALARRAY_AUGMENTED_ASSIGNMENT(*, multiplies)
_DEFINE_VALARRAY_AUGMENTED_ASSIGNMENT(/, divides)
_DEFINE_VALARRAY_AUGMENTED_ASSIGNMENT(%, modulus)
_DEFINE_VALARRAY_AUGMENTED_ASSIGNMENT(^, xor)
_DEFINE_VALARRAY_AUGMENTED_ASSIGNMENT(&, and)
_DEFINE_VALARRAY_AUGMENTED_ASSIGNMENT(|, or)
_DEFINE_VALARRAY_AUGMENTED_ASSIGNMENT(<<, shift_left)
_DEFINE_VALARRAY_AUGMENTED_ASSIGNMENT(>>, shift_right)

#undef _DEFINE_VALARRAY_AUGMENTED_ASSIGNMENT


} // std::
  

namespace std
{

#define _DEFINE_VALARRAY_EXPR_AUGMENTED_ASSIGNMENT(_Op, _Name)          \
  template<class _Tp> template<class _Dom>				\
  inline valarray<_Tp> &						\
  valarray<_Tp>::operator _Op##= (const _Expr<_Dom,_Tp> &__e)		\
  {									\
      _Array_augmented_##_Name (_Array<_Tp>(_M_data), __e, _M_size);	\
      return *this;							\
  }

_DEFINE_VALARRAY_EXPR_AUGMENTED_ASSIGNMENT(+, plus)
_DEFINE_VALARRAY_EXPR_AUGMENTED_ASSIGNMENT(-, minus)
_DEFINE_VALARRAY_EXPR_AUGMENTED_ASSIGNMENT(*, multiplies)
_DEFINE_VALARRAY_EXPR_AUGMENTED_ASSIGNMENT(/, divides)
_DEFINE_VALARRAY_EXPR_AUGMENTED_ASSIGNMENT(%, modulus)
_DEFINE_VALARRAY_EXPR_AUGMENTED_ASSIGNMENT(^, xor)
_DEFINE_VALARRAY_EXPR_AUGMENTED_ASSIGNMENT(&, and)
_DEFINE_VALARRAY_EXPR_AUGMENTED_ASSIGNMENT(|, or)
_DEFINE_VALARRAY_EXPR_AUGMENTED_ASSIGNMENT(<<, shift_left)
_DEFINE_VALARRAY_EXPR_AUGMENTED_ASSIGNMENT(>>, shift_right)

#undef _DEFINE_VALARRAY_EXPR_AUGMENTED_ASSIGNMENT
    

#define _DEFINE_BINARY_OPERATOR(_Op, _Name)				\
  template<typename _Tp>						\
  inline _Expr<_BinClos<_Name,_ValArray,_ValArray,_Tp,_Tp>, _Tp>        \
  operator _Op (const valarray<_Tp> &__v, const valarray<_Tp> &__w)	\
  {									\
      typedef _BinClos<_Name,_ValArray,_ValArray,_Tp,_Tp> _Closure;     \
      return _Expr<_Closure, _Tp> (_Closure (__v, __w));		\
  }									\
									\
  template<typename _Tp>						\
  inline _Expr<_BinClos<_Name,_ValArray,_Constant,_Tp,_Tp>,_Tp>         \
  operator _Op (const valarray<_Tp> &__v, const _Tp &__t)		\
  {									\
      typedef _BinClos<_Name,_ValArray,_Constant,_Tp,_Tp> _Closure;	\
      return _Expr<_Closure, _Tp> (_Closure (__v, __t));	        \
  }									\
									\
  template<typename _Tp>						\
  inline _Expr<_BinClos<_Name,_Constant,_ValArray,_Tp,_Tp>,_Tp>         \
  operator _Op (const _Tp &__t, const valarray<_Tp> &__v)		\
  {									\
      typedef _BinClos<_Name,_Constant,_ValArray,_Tp,_Tp> _Closure;     \
      return _Expr<_Closure, _Tp> (_Closure (__t, __v));        	\
  }

_DEFINE_BINARY_OPERATOR(+, plus)
_DEFINE_BINARY_OPERATOR(-, minus)
_DEFINE_BINARY_OPERATOR(*, multiplies)
_DEFINE_BINARY_OPERATOR(/, divides)
_DEFINE_BINARY_OPERATOR(%, modulus)
_DEFINE_BINARY_OPERATOR(^, _Bitwise_xor)
_DEFINE_BINARY_OPERATOR(&, _Bitwise_and)
_DEFINE_BINARY_OPERATOR(|, _Bitwise_or)
_DEFINE_BINARY_OPERATOR(<<, _Shift_left)
_DEFINE_BINARY_OPERATOR(>>, _Shift_right)

#undef _DEFINE_BINARY_OPERATOR

#define _DEFINE_LOGICAL_OPERATOR(_Op, _Name)				\
  template<typename _Tp>						\
  inline _Expr<_BinClos<_Name,_ValArray,_ValArray,_Tp,_Tp>,bool>        \
  operator _Op (const valarray<_Tp> &__v, const valarray<_Tp> &__w)	\
  {									\
      typedef _BinClos<_Name,_ValArray,_ValArray,_Tp,_Tp> _Closure;     \
      return _Expr<_Closure, bool> (_Closure (__v, __w));               \
  }									\
									\
  template<class _Tp>							\
  inline _Expr<_BinClos<_Name,_ValArray,_Constant,_Tp,_Tp>,bool>        \
  operator _Op (const valarray<_Tp> &__v, const _Tp &__t)		\
  {									\
      typedef _BinClos<_Name,_ValArray,_Constant,_Tp,_Tp> _Closure;     \
      return _Expr<_Closure, bool> (_Closure (__v, __t));       	\
  }									\
									\
  template<class _Tp>							\
  inline _Expr<_BinClos<_Name,_Constant,_ValArray,_Tp,_Tp>,bool>        \
  operator _Op (const _Tp &__t, const valarray<_Tp> &__v)		\
  {									\
      typedef _BinClos<_Name,_Constant,_ValArray,_Tp,_Tp> _Closure;     \
      return _Expr<_Closure, bool> (_Closure (__t, __v));	        \
  }

_DEFINE_LOGICAL_OPERATOR(&&, logical_and)
_DEFINE_LOGICAL_OPERATOR(||, logical_or)
_DEFINE_LOGICAL_OPERATOR(==, equal_to)
_DEFINE_LOGICAL_OPERATOR(!=, not_equal_to)
_DEFINE_LOGICAL_OPERATOR(<, less)
_DEFINE_LOGICAL_OPERATOR(>, greater)
_DEFINE_LOGICAL_OPERATOR(<=, less_equal)
_DEFINE_LOGICAL_OPERATOR(>=, greater_equal)

#undef _DEFINE_LOGICAL_OPERATOR

} // namespace std

#endif // _CPP_VALARRAY

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// mode:c++
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